Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already mark this as mutating (readOnlyHint=false) but non-destructive. The description adds useful context by indicating the action is a request to a running simulation and involves partial results, but it does not clarify whether the upload is synchronous or fire-and-forget, or what side effects on storage occur.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.